Explosive.



UNITED STATES PATENT ()FFICE.

CHARLES CLEMENT AND JEAN LANGHARD, 0F VALLORBE, SWITZERLAND, ASSIGNORSTO GEORGES GROBET, OF VALLORBE, SWITZERLAND.

Patented Sept. '7, 1909.

EXPLOSIVE.

933,060. Specification of Letters Patent.

No Drawing. Application filed November 3, 1905.

petroleum, turpentine oil, benzin or bent.

Serial No. 285,801.

or turpentine oil 2 parts, benzene 4 parts, suet 9 parts.

The fat can be partially replaced by resin whereby the cost ofmanufacturing is reduced.

Explosive bodies with a combustible matter of this composition can beobtained for example as follows: 50 parts of suet are melted and mixedwith 50 parts of a solution of equal parts of gglophon and petroy 5mgleum. The mass becomes so 1 zenes for combustible matters of explosivebodies containing chlorates or perchlorates as oxidizing matters, isadvantageous owing to the rapid oxidation of these hydrocarbons whichgives a great explosive power to the explosive matters of this class.But the volatile hydrocarbons can not be used without any addition, thestability of an explosive matter consisting only of hydrocarbons andchlorates or perchlorates being reduced by the volatility of thesehydrocarbons.

The present invention relates to a new and improved explosive in whichthe volatile hydrocarbons are used as combustible matters withoutoffering the aforesaid disadvantages. This inconvenience is avoided bymixing the volatile hydrocarbons with a fatty body with which they forma plastic mass which binds the hydrocarbons and avoids theirevaporation. Such plastic mass can for example be composed by thefollowing bodies: benzene 1 part, suet 2 parts, or turpentine oil 2parts, suet 3 parts, or petroleum oil 1 part, suet 2 parts. Thesemixtures are liquid at about 50 C. and are mixed at this temperaturewith powdered chlorate of potassium in a proportion of 8 to 12 partscombustible matter and parts of chlorate of potassium. This mixturebecomes solid at the ordinary temperature and is moldable whereby theexplosive matter enters the blast-hole and spreads there very well andis very stable.

In the same manner it is possible to make explosives having the sameproperties by mixing 100 parts of perchlorate o potassium or ammoniumwith 10 to 14 parts of a combustible matter which consists of thefollowing plastic masses: benzene 2 parts, suet 5 parts, or turpentineoil 5 parts suet 7 parts,

mumserewwmnm.

but remains soft and plastic. The combustible matter prepared in thismanner is kneaded with the chlorate or the perchlorate until it forms atotally homogeneous mass. About 8 to 10 of the combustible matter isused with chlorate of potassium or sodium and about 10 to 14 of thecombustible matter is employed with perchlorate of potassium,

sodium or ammonium. The combustible matters suitable for such anapplication can be for instance composed as follows: turpentine oil 1part, suet 2 parts, resin 1 part,

or benzene 1 part, suet 2 parts, resin 1 part.

The explosives obtained by the present proceedings are plastic at theordinary temperature and can be kept a very long time without altering.In contact with a flame they do not easily catch fire and when set on 2.The herein described plastic explosive I consisting of a mixtureof'suet, benzene, resin and potassium c h lo ra te 1n e proportionshereln speclfied.

In testimony whereof we affix our signatures in presence of twowitnesses.

CHARLES CLEMENT. JEAN LANGHARD.

Witnesses:

L. H. MUNIER, F .VULLIER.

